Francis Cuss, MB BChir, FRCP, has been appointed executive vice president and chief scientific officer of Bristol-Myers Squibb, effective July 1. He will replace Elliott Sigal, M.D., Ph.D., who plans to retire. Dr. Sigal has served as the company’s chief scientific officer since 2004 and on the board of directors since 2011. He will retire from both positions June 30, 2013. Drs. Sigal and Cuss will continue to work together until that time.   “Francis is a strong and collaborative leader with br...